摘要:
A supercooling inhibitor comprising a supercooling inhibitor base having all or part of its surface coated with sodium acetate trihydrate. The supercooling inhibitor base comprises one or more members selected from the group consisting of sodium pyrophosphate (Na.sub.4 P.sub.2 O.sub.7), trisodium monohydrogen pyrophosphate (Na.sub.3 HP.sub.2 O.sub.7), disodium dihydrogen pyrophosphate (Na.sub.2 H.sub.2 P.sub.2 O.sub.7), monosodium trihydrogen pyrophosphate (NaH.sub.3 P.sub.2 O.sub.7), sodium pyrophosphate decahydrate (Na.sub.4 P.sub.2 O.sub.7.10H.sub.2 O), and disodium dihydrogen pyrophosphate hexahydrate (Na.sub.2 H.sub.2 P.sub.2 O.sub.7.6H.sub.2 O). The supercooling inhibitor of the present invention is useful for inhibiting the supercooling of sodium acetate trihydrate which is used as a heat regenerating material utilizing heat of fusion.
摘要翻译:一种过冷却抑制剂,其包含具有用乙酸钠三水合物包覆的其全部或部分表面的过冷抑制剂基质。 过冷却抑制剂基质包括选自焦磷酸钠(Na 4 P 2 O 7),焦磷酸氢二钠(Na 3 HP 2 O 7),焦磷酸二氢二钠(Na 2 H 2 P 2 O 7),焦磷酸三氢钠(NaH 3 P 2 O 7),焦磷酸钠十水合物(Na 4 P 2 O7.10H 2 O) ,和二水合焦磷酸二钠六水合物(Na2H2P2O7.6H2O)。 本发明的过冷却抑制剂可用于抑制作为利用热熔融热的热再生材料的乙酸钠三水合物的过冷。
摘要:
The heat accumulating material provided according to this invention makes use of the latent heat of fusion of sodium acetate trihydrate, and it comprises, as blended in a system consisting of sodium acetate and water, at least one nucleation catalyst selected from the group of compounds consisting of tetrasodium pyrophosphate, trisodium monohydrogenpyrophosphate, disodium dihydrogenpyrophosphate and monosodium trihydrogenpyrophosphate. In use of this heat accumulating material, the sodium acetate trihydrate would not be overcooled owing to the overcooling preventing function of the nucleation catalyst but is unfailingly crystallized at a temperature close to the fusion point thereof to radiate latent heat of fusion. The overcooling preventing performance of the nucleation catalyst is not deteriorated even if it is subjected to more than 1,000 cycles of repetition of fusion and solidification, and thus the heat accumulating material maintains a very stabilized heat absorbing and radiating capacity.
摘要:
This invention relates to a solar energy storage material comprising N,N'-bis(phenylacetyl)indigo dissolved in a polar solvent. Of the indigo derivatives capable of storing the solar energy by the photoisomerization from trans-isomer to cis-isomer of the molecule, all of the compounds obtained so far had an energy storage capacity of only 30 cal or less per 1 g of the compound and also a high thermal isomerization rate from cis form to trans form in solution. Thus, they cannot be called a solar energy storage material of practical value.In the case of the present invention, on the other hand, when N,N'-bis(phenylacetyl)indigo is dissolved in a polar solvent such as acetonitrile, it is possible to store about 60 cal of energy per 1 g of N,N'-bis(phenylacetyl)indigo, and the half-life period of isomerization from cis to trans from in acetonitrile at 17.degree. C. is 1,264 minutes, which is also a satisfactory value for practical application.
摘要:
This invention is a method for storing light energy using an indigo derivative. Among indigo derivatives capable of storing light energy by the photoisomerization of the molecule from the trans-form to the cis-form, compounds heretofore obtained have been soluble only in expensive solvents such as benzene, toluene, chloroform, carbon tetrachloride and the like and harmful substances.On the other hand, the indigo derivative of this invention has the form of a pyridinium salt, is soluble in water and/or ethanol, and permits employment of safe and inexpensive water and/or an alcohol as a solvent.The indigo derivative of this invention converted from the trans-form to the cis-form by irradiation with sunlight and storing sunlight energy liberates the aforesaid stored energy as heat on addition of a catalyst and/or a heat trigger.
摘要:
The disclosure is directed to a composite thermal insulator including a Freon gas expanded plastic, and an evacuated powder insulation. The present invention provides a composite thermal insulator light in weight and having a superior heat insulating performance over a long period through replacement of a thick metallic container conventionally used for the evacuated powder insulation and considered indispensable for withstanding a load at one atmospheric pressure and for preventing vacuum leakage, by a film-like plastic container, with activated carbon disposed in it.More specifically, the composite thermal insulator of the present invention includes a Freon gas expanded plastic, a film-like plastic container evacuated to form a vacuum in its interior, and directly contacting and/or covered by the expanded plastic, and activated carbon or inorganic powder containing activated carbon tightly enclosed in the plastic container, light in weight, having a heat conductivity lower than 0.01 kcal/mh.degree.C. and a mechanical strength sufficient for actual use, with almost no variations with time in the heat insulating property.
摘要:
A heat storage material comprises a sodium acetate-water system containing at least 53-69% by weight sodium acetate (CH.sub.3 CO.sub.2 Na), wherein said heat storage material is mixed with a thickener comprising polyvinyl alcohol, paraffin and one or two components selected from the group consisting of formaldehyde and acetone, and has stable performance and little change of heat storage capacity even under repeated storage and release of heat.
摘要翻译:储热材料包括含有至少53-69%(重量)乙酸钠(CH 3 CO 2 Na)的乙酸钠 - 水体系,其中所述蓄热材料与包含聚乙烯醇,石蜡和一种或两种选自以下组分的组分的增稠剂混合 由甲醛和丙酮组成,即使在反复的储存和释放热下也具有稳定的性能和储存能力的变化。
摘要:
The heat accumulating material of this invention comprising three components of calcium chloride (CaCl.sub.2), urea [CO(NH.sub.2).sub.2 ] and water (H.sub.2 O) can have varied temperatures of heat accumulating and heat releasing between 15.degree. C. and 29.5.degree. C. by varying the proportion of said three components, and also has a large latent heat. Hence, much expectation can be placed on it as a heat accumulating material for air conditioning. Moreover, by adding BaFeO.sub.3-x (0.ltoreq.x.ltoreq.0.53) as a nucleating agent to the above-mentioned composition, supercooling can be greatly decreased and wider application of this heat accumulating material becomes possible.
摘要:
A novel latent heat accumulative material capable of accumulating heat in a temperature range best suited for the storage of solar energy was obtained by adding an organic compound or compounds such as urea [CO(NH.sub.2).sub.2 ]to a system consisting of sodium acetate (CH.sub.3 CO.sub.2 Na) and water (H.sub.2 O). Further addition of a crystal nucleus forming material or materials such as sodium pyrophosphate decahydrate (Na.sub.4 P.sub.2 O.sub.7.10H.sub.2 O) to said composition could minimize supercooling and allowed a wider scope of application of the present heat accumulative material.
摘要翻译:通过在由乙酸钠(CH 3 CO 2 Na)组成的体系中加入有机化合物或诸如脲[CO(NH 2)2)等有机化合物,能够在最适合储存太阳能的温度范围内积累热量的新型潜热蓄热材料 )和水(H 2 O)。 进一步加入形成晶核的材料或诸如焦磷酸钠十水合物(Na 4 P 2 O7.10H 2 O)的材料可以使过冷却最小化,并允许现有的蓄热材料的应用范围更广。
摘要:
In a fender panel fixing structure of a passenger vehicle according to the present invention, a notch portion of a fender panel is provided with a first flat plate-shaped projection strip that is capable of being inserted into a space between an upper end periphery of a fixed window and a side body and has an engagement portion, and a second flat plate-shaped projection strip that is capable of being inserted into a space between a lower end periphery of the fixed window and the side body and has an engagement portion. The side body has a first engaging portion and a second engaging portion that are disposed in portions covered by the upper end periphery and the lower end periphery of the fixed window. The first and second engaging portions are respectively capable of engaging the first flat plate-shaped projection strip and the second flat plate-shaped projection strip.
摘要:
An image formation apparatus has a waste toner accommodation unit including a toner transporting rotation member covered with a fixed pipe. As the member rotates, waste toner in the pipe is transported downstream A fin involved in detecting an amount of toner moves upward and downward with a predetermined amplitude as the member rotates. The pipe has a projection secured by an elastic member to a bottom of the waste toner accommodation unit, and when waste toner reaches the level of the pipe, the waste toner is compressed in the pipe downstream and thus increases in density, and together with the waste toner the pipe starts to rotate. As a result, the projection rotates to a position allowing it to interfere with the fin, and the fin decreases in amplitude. Such variation in amplitude is detected by a sensor and a state full of toner is thus detected.